AS400 Developer/Admin (Hybrid)

Client: State of OK/Office of Management and Enterprise Services (OMES)

Job Title: AS400 Developer/Admin

Job ID: SW1025

Location & Schedule: Oklahoma City/Hybrid Remote M-F 20 hrs a week

Duration: 2026-09-30 to 2027-09-29

Timeline & Interview Process: 1 round Teams Video call - 30 mins (Technical/Cultural FIT to OID), if needed, maybe a second round for the shortlisted candidates

Part time: Monday - Friday 20hrs per week

Position Overview

• The Office of Management and Enterprise Services (OMES), in coordination with the Oklahoma Insurance Department (OID), is seeking an experienced, high-caliber AS400 Developer/Admin for a long-term contract engagement. This critical resource will provide essential application maintenance, database management, and application-level administration services for OID s core IBM AS/400 (IBM i Series) environment.
• Because the underlying AS/400 hardware partition, operating system, and baseline infrastructure are fully hosted and managed by an external provider, this position does not require hardware or OS-level systems engineering. Instead, the contractor
• will focus on application development, software support, database management, and serving as the technical liaison to Ensono for environment-level modifications.
• Additionally, the contractor will play a key role in assisting state IT leadership with database extraction, documentation of legacy business logic, and support for ongoing cloud migration and data archiving initiatives.

Key Responsibilities

• Legacy Application Maintenance & Support
  • Maintain, modify, and optimize custom legacy application code written in RPG, RPG III, RPG IV (ILE RPG), RPGLE, and Control Language (CL).
  • Investigate and troubleshoot operational bugs, batch run anomalies, and user-reported system issues.
  • Update existing logic to adapt to regulatory changes, licensing requirements, and agency business process updates.
• Application Administration & Infrastructure Liaison
  • Serve as the primary technical point of contact to coordinate with the hosting provider for system maintenance, OS patching schedules, database utilities, and environmental adjustments.
  • Manage application-level security configurations, including user profiles, object-level authority, and verify system audit logs (QAUDJRN) to maintain system integrity.
  • Manage local job queues, active subsystems, and application-level job schedulers.
  • Coordinate with Ensono s storage and backup operations teams to ensure application backup windows, disaster recovery testing, and restoration verifications are carried out successfully.
• DB2 Database & Integration Management
  • Query, manage, and tune DB2 for i databases, optimizing SQL queries and indexes to ensure database responsiveness.
  • Support secure, automated file transfers (SFTP/FTP) and interfaces between the hosted AS400 partition and downstream state, regional, or partner systems.
• Modernization & Migration Enablement
  • Cooperate with state database administrators and cloud architects to extract, clean, and archive legacy tables.
  • Document system flows, database schemas, and interdependencies to facilitate a seamless transition of legacy business logic to modern cloud systems.

Required Skills & Qualifications

• Experience: Minimum of five (5) years of hands-on experience in AS400 (IBM i, iSeries) application development and support.
• Programming Skills: Exceptional proficiency in RPG IV (ILE RPG), RPGLE, CL, and SQL on DB2 for i.
• Hosting Coordination: Prior experience working in a hosted/managed AS400 environment, collaborating with external hosting providers (such as Ensono) to resolve infrastructure or environmental issues.
• Application Administration: Proven experience in IBM i work management, subsystem coordination, application security, and user profile management.
• Data Integration: Strong background in file transfer automation (FTP, SFTP) and managing external integrations.

Highly Valued Skills (Nice-to-Haves):

• Direct experience assisting in legacy-to-cloud migrations or data warehousing extractions.
• Familiarity with modern IBM i tools, such as Rational Developer for i (RDi).
• Prior experience working in public sector environments or supporting insurance regulatory systems.

Work Environment and Terms

• This role is structured as a contract engagement. Candidates must be local to Oklahoma City or willing to relocate, as hybrid schedules require designated on-site days at Oklahoma Insurance Department or OMES facilities.
• Candidates must pass a comprehensive background check as required by State of Oklahoma IT security standards.